Research of the Surrounding Rock Deformation Control Technology in Roadway under Multiple Excavations and Mining

Figure 5

Deformation nephogram of air-return roadway 5103 under multiple excavations and mining conditions. (a) During the excavation of air-return roadway 5103. (b) During the excavation of the top air-return roadway of panel 8103. (c) During the mining of adjacent panel 8101.

(a)

(b)

(c)